Simon invested $ 1,550 at 6.5 simple interest.He earned $302.25 in interest after t years. What is the value of t?
2 answers:
Answer:
Time = 3 years.
Step-by-step explanation:
The simple interest can be calculated by the formula :
Simple Interest = PXTXR
Where = Principal
T= time .
R= rate of Interest.
The question is asking us to find time t.
T=
S.=-$302.25,P=$1,559 ,r=6.5%=0.065.
Substituting these values in the formula :
T=
Time = 3 years.
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<h3>Answer: Choice D</h3>
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Explanation:
The inequality sign has an "or equal to", which means the boundary line will be solid. We can rule out choices B and C because they have dashed boundary lines.
A solid boundary line means that points on the boundary are part of the solution set.
Now let's see what happens when we plug in a point like (x,y) = (4,0). This will tell us how to shade the blue region.
This is false because -20 is not larger than -1. It's the other way around.
This tells us the point (4,0) is not in the blue shaded region, and it's not on the boundary line either. We can rule out choice A because of this.
The only thing left is choice D, which is the final answer. I recommend plugging a point from this region into the inequality to confirm we have a true statement.